Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
cac nuoc » cap nuoc, hoc nuoc, dat nuoc
cua tre » cua te, cuu tre, cua triet
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
vai cua » dai cua, hai cua, lai cua
cac xuc » cam xuc, chat xuc, cac cuoc
tu ban » thu ban, te ban
ban ky » van ky, dan ky

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu ban ky nang xa hoi. hieu ve ((cac xuc) OR (cac nuoc)) ((van hanh) or (ngan hang)) vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ban ky nang xa hoi. hieu ve ((cac xuc) OR (cac nuoc)) ((van hanh) OR (ngan hang)) vai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ban ky nang xa hoi. hieu ve ((cac xuc) OR (cac nuoc)) ((van hanh) or (ngan hang)) vai cua tre".
• Adding a wildcard symbol may retrieve word variants: tu ban ky nang xa hoi. hieu ve ((cac xuc) OR (cac nuoc)) ((van hanh) or (ngan hang)) vai cua tre*.